In a 20 s interval, 210 hailstones strike a glass window of area 1.362 m2
at an angle 52◦
to the
window surface. Each hailstone has a mass of
6 g and speed of 10.8 m/s.
If the collisions are elastic, find the average
force on the window.
Answer in units of N

idk

step-by-step explanation:

d. is the correct answer

step-by-step explanation:

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.